Pump packing



I Sept. 15. `1925.

C. P. WILLIAMS.

PUMP PAGKING Filed May 29, 1924 Patented Sept. 15, 1925.

mafii-:A53

PATEr AFruit.

CLARENCE PEl'tCY EVILLIAMS, OF SYR-ACUSE, HIO.

PUMP PACKING.

Application filed May 29, 1924.

To aZZ 'witam t may camera Be it known that I, CLARENGE P. WIL- LrAMs, a citizen of the United States, residing at Syracuse, in the county of Meigs and State of Ohio, have invented certain new and 'useful Improvements in Pump Packings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to a packing for pumps which will withstand high pressure and give maximum service without collapsing or becoming detached from the piston.

In accordance with the present invention, a cup-shaped packing is reinforced by an inner metal liner which is self-expanding and which has outwardly disposed flanges at its top and bottom, the top fiange engaging over the upper edge of the packing and the bottom flange entering the packing and making a positive connection therewith to prevent detachment of the packing from the follower, said liner consisting of a split ring and having an interlocking joint between the ends bordering upon the split.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

VVhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the spirit of the invention.

Referring to the accompanying drawing forming a part of the application:

Figure l is a perspective view of a pump packing embodying the invention;

Figure 2 is a seotional view on the line 2 2 of Figure 1; and

Figure 3 is a perspective view of the inner metal liner.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawing by like reference characters.

The packing 1 is of usual cup-Shape and consists of leather or analogous material. The inner metal liner 2 consists of Aa ring of spring metal said ring being split and provided with a top fiange 3 and a bottom Serial No. 716,704.

fiange 4, the ring being of a type corresponding with the outer wall of the packing 'so that the top fiange 3 engages over the upper edge of the outer wall of the packing and the bottom flange 4 becomes embedded in said wall adjacent the bottom of the packing. This is shown most clearly in Figure 2 of the drawing. An interlocking joint is formed between the separated ends of the ring and this joint embodies projections 5 and notches 6, these parts inter-fitting when the ends of the ring are brought together as shownmost clearly in Figure 2.

It is observed that the bottom 'flange 4: projects o'utwardly to a less extent than the top fiange 3, the distance being such as to insure its becoming embedded in the outer wall of the packing 1 adjacent the bottom thereof to insure a firm and positive connection whereby to prevent the forcing of the packing over the follower under high pressure which is one of the principal objections and difiiculties overcome by the present invention. The top fiange 4 engages over the upper edge of the outer wall of the packing 1 and carries the high pressure load and prevents the outer wall of the packing from collapsing and pulling inward and allowing the fluid to come'between the wall of the cylinder or barrel and the outer or upstanding wall of the packing.

VVhat is claimed is 1. A cup-shaped packing and a metal inner liner therefor having outwardly disposed top and bottom flanges, the latter being embedded in the outer wall of the packing adjacent the bottom thereof, the top flange engaging over the 'upper edge of the said outer wall, said liner consisting of a split spring ring and having an interlocking joint between the ends bordering upon the split.

2. A cup-shaped 'packing and a spring ring positioned in the packing against the upstanding or outer wall thereof and having a bottom flange disposed outwardly and embedded in said wall adjacent the bottom` of the packing. t

8. A cup-shaped packing and a spring ring positioned in the packing against the upstanding or outer wall thereof and provided with outwardly disposed top and bottom flanges, the bottom flange being embedded in said wall adjacent the-bottom of the packing, and the top fiange overlying ;and contacting With JL'he upper edge of Said bottom fiange being of less width than the wall. top fiange and embedded in said outer Wall A eup-shaped packng and a spring adjacent Jshe bottom of the packng, and the 10 ring postoned in 'the packng against the top fiange overlying and contacting With the upstandng 01' outer Wall ther'eof and proupper edge of said Wall. vded With outwardly dsposed annular In testmony whereoflafix my signature. fianges at the top and bottom thereof, the CLARENCE PERCY VVILLIAMS. 

